Structure of seat with walk-in mechanism

A structure of seat with walk-in mechanism in combination with a floor of vehicle,

• wherein said seat is movable in a forward direction to slide forwardly thereof and in a backward direction to slide backwardly thereof, said seat including:
• a seat cushion;
• and a seat back rotatably connected with said seat cushion so as to allow for forward inclination thereof in said forward and backward inclination thereof is said backward directions,
• wherein said walk-in mechanism includes a spring means and is operable in conjunction with said forward inclination and backward inclination of said seat back, such that, with the forward inclination of the seat back, said seat is biasingly caused by said spring means to move from a normal use position in said forward direction to a walk-in position which allows a passenger to enter a space behind said seat,
• wherein said walk-in mechanism comprises;
• an extension coil spring element as said spring means, said extension coil spring having one end and another end;
• a first support means fixed to said floor of vehicle so as to be stationary relative to said floor of vehicle;
• said one end of said extension coil spring being engaged with said first support means;
• and
• a second support means fixedly provided to said seat, such that, with movement of said seat in said forward and backward directions, said second support means is moved relative to said floor of vehicle in said forward and backward directions, said second support means including a connecting means for operatively connecting said another end of said extension coil spring with said seat back,
• and
• wherein movement of said seat in said forward and backward directions causes simultaneous movement of both said second support means and said another end of said extension coil in the forward and backward directions, and wherein, upon said seat back being inclined in said forward direction, said another end of said extension coil spring is moved in the backward direction via said connecting means.